公开(公告)号：US20230004400A1

公开(公告)日：2023-01-05

申请号：US17943265

申请日：2022-09-13

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： JYOTI RAHEJA ,  HIDEKI KANAYAMA ,  GUHAN KRISHNAN ,  RUIHUA PENG

IPC: G06F9/4401 ,  G06F1/3234 ,  G06F12/0804 ,  G06F1/3287

Abstract: A system for providing system level sleep state power savings includes a plurality of memory channels and corresponding plurality of memories coupled to respective memory channels. The system includes one or more processors operative to receive information indicating that a system level sleep state is to be entered and in response to receiving the system level sleep indication, moves data stored in at least a first of the plurality of memories to at least a second of the plurality of memories. In some implementations, in response to moving the data to the second memory, the processor causes power management logic to shut off power to: at least the first memory, to a corresponding first physical layer device operatively coupled to the first memory and to a first memory controller operatively coupled to the first memory and place the second memory in a self-refresh mode of operation.

公开(公告)号：US20230078439A1

公开(公告)日：2023-03-16

申请号：US17992451

申请日：2022-11-22

Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

Inventor： GUHAN KRISHNAN ,  Carl K. Wakeland ,  Saikishore Reddipalli ,  Philip Ng

IPC: G06F21/74 ,  G06F21/57 ,  H04L67/104 ,  G06F13/42 ,  G06F15/78

Abstract: Devices, methods, and systems for secure communications on a computing device. A host operating system (OS) runs on a host processor in communication with a host memory. A secure OS runs on a coprocessor in communication with a secure memory. The coprocessor receives information from an external device over a secure peer-to-peer (P2P) connection. The secure P2P connection is managed by the secure OS and is not accessible by the host OS.